Release mechanism for morse telegraphs.



No. 876,952. PATBNTED JAN 2l, 1908. E. DUGRETET. RELEASE MBCHANISM'FOR MORSE TELEGRAPHS.

APPLICATION FILED JUNE 15.1905.

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and release enf/agement between r ,risica EUGNE DUoRETnT, or PARIS, FRANCE.

RELEASE MECHANISNI FOR MORSE TELEGRAPHb.

Specification of Letters Patent.

Patented Jan. 21. 1 G08.

,Application filed-June 15 1905. Serial No. 265.400

To cl-L wir-om it may concern.'

Be it known that I, EUGNE Dccnnrnr, a citizen of the Republic of France, and resident of 75 Rue Claude Bernard, Paris, France, manufacturer, have invented cer tain new and useful Improvements in Release ivlechaiiisiiifor Morse Telegraphs for Automatically Releasing Electric Telcgraphs,of which the following is a specification.

This invention relates to improvements in devices for automatically or manually arresting the paper feed mechanism which is Vespecially adapted for a Morse receiving instrument the device serving the purpose of automatically arresting the paper feed when the instrument ceases to operate and also serving 'to release and 'permit starting of the paper feed mechanism when instrument l starts to operate.

The invention will be more fully described in connection with the accom anying drawing and will be moreparticu arly set forthand ascertained in and by the appended claims,

In the drawingz--Figure 1 is a sectional view taken on line lf] of Fig. 2. Fig. 2 isa sectional view looking in the direction of the arrow 2 ofFig. l. Fig. 3 isa plan view of the device. l

Like characters of reference designate similar parts throughout the drawing.

As shown E designates a coil which may or may not form a' part of a Morse receiving il strumcnt and i designates an armature which likewise may or may not forni the sounder or a part of the receiving instrument. Said armature P is secured to a shaft X which mounted at its endsupon bearings a' of`a common type used in this class of instruments. A spring normally maintains the armature P in an eihvated posi'tion when the coil E is de energized and 'permits operation of the armature when the coil is ener ized. A pawl releasing device in the form o an armd is ssecured to said shaftX at d and carries at its opposite end a endent bent portion d5 adapted to project cneatli pawls vand Z and ratchet wheels R and R i Said ratchet wheels as shown are provided with teeth and are mounted upon a studlshaft R2 secured at one end to a movably mounted manually o erable cut-iii device iii the form of a platefl" which will be more fully described hereinafter. Said pawls l and l are preferably in the form'of straight hars having angularly bent cam engaging portions Z2 and Zi adapted for engagement with a cam S which ispreferably in the forni of a stationary dprojection anchored to any. convenient iixe part. ,f

One of the pawls, preferably pawl l is pivotally mounted upon plate I at Z4 while the other pawl' Z2 is pivotally secured at E to a cam operated arm or lever Z7 pivotally mounted at Z* to a bracket L2, which is iig idly secured to the plate P. The lower end of said anni Z is provided with a cam engaging portion L3 adapted to be engaged-by a cam C mounted upon shaft C. constitutes a part of the mechanism forfeeding the paper, the major portion of-whichmechanism is not shown, 't ie shaft C being provided with a gear C? adapted to be operatively related to said niechanisin.- 11n order to provide a substantiallyT constant feed for said mechanism the same is usually provided with a governor such for instance as that which is used in connection with music 'boxes .and the like and in the present case such a governor is shown at V and comprises in part a shaft c mounted in bearings 'u' and o2. Said' shaft o is provided at its upper end with. a worm V meshing with a worm wheel C3 on shaft C. A hub f, to which is secured an arm g, is fixed to the shaft o. Ratchet wheel R carries a sto arm A adapted to he swung into the path o` the arm g in the man;

ner shown in Figs. 1 and 2 to arrest rotative movement of the latter and act through the governor to stop the pa er feed mechanism. Ratchet wheel R ,is a so provided with a balance in the form of a weighted arinl R3 acting normally to rotate the ratchet wheel R in a manner to hold the arm A out of the path of arm g, the shaft C limiting such rotative movement of the ratchet wheel-R by reason of the fact that the arm R3 engages the shaft C. in order to maintain the arm Z7 in operative relation with the cam C a spring Z9 is provided and is mounted at one end in the bracket L? and engages at its'free end the arm Z7. The movement ofv arm Z1 in one direction is preferably controlled by an adjusting device 1n the form of a screw ZD se cured to the plate P. l

ln order to permit of manually throwing the paper feed mechanism into operation there is provided a manually operable device as hereinheiore described in the form of the plate l5. Said plate is pivotally mounted Aso at its lower end to any suitable stationarv v part pf and is provided at its upper-end with e projection or handle M adapted to pn'iject through a slot m the .opposite walls oit which servo to limit movement of said late F. As'shown the ratchetwvheels R an R, the caro erin Z7 and the adjusting device Z5. are mounted on saidfplste i.

The operation is as 'lloiiows As shown iii Fi 2 the,4 parts cre in a position of rest. W'en the vcoil E is energized the armature against.- the notion of spring 'p thereby sorving to' raise the arm d end 'liftboth pcwls Z end Z" ont -oi' engagement with ratchet Wheels R'aiid The balance 'R3 thereupon swings or retates the ratchet 'wheels in oolockwise direction 'until the balance engngee shaft U- thereby serving to swing arm A out oi engagement With arm g and release the paper feed governor. The paper feeding Idevice is thereupon. started through its own. driving mechanism, not shown,l end operated in conjunction with the telegraph receiver in the usual menner. When the receiver ceases to operate and the coil E is denvergized the spring o lifts the armature P depressing the anni and permitting the pcwls l and Z to engage the ratchet Wheels R and it. The continued operation of the paper feeding mechanism causes the rotating cams C to engage and operate cam arm Z7 and y therethrough reciprocate iaWl Z iii e. monviriovement of paper feed mechanism.

ner to cerise rotstionoi t e vratchet Wheels lt and R in a contre-clockwise direction which movement serves to raise the balance R and swing the erm A into the )sth of srins g as shown in Fig. 2 and there v arresting In performing this function the owl t acts to positively rotate ratchet 'Whee R/ and therethrough ratchet wheel lt While pcvrl Z merely serves to retain said wheels in theinadvancedpositioii during the retrective movement of pawl Z, the two pai/vlc acting in conjunction vvith the ratchet Wheels in the mannei of an escapement. `When it is desired to throwy the pa er `iced mechanism into till operation manual y the operator mey grasp the i'ojection M :ind swing the plate P to the cit ond to the limit of its movement whereupon the portions ZZ and Z3 ol the pswls will engage 'the cam S. lifting the pawls ont oi engagement with the ratchet Wheels end 'freeing the latter so-thet the balance it will censo a partial rotation and swing the .firm A 'out oi engagement with the arm g in the lmanner hereinbefore described.

l. A device of the cless described, compris-- ingcn armature provided with a depending powl releasing extension, a ratchet wheel composed of two toothed sections, pewls adopted l'or ei'ig'agement 'with seid sections find extending :ihove said depending extension, a com arm connected with one of said events paivlsj a swinging freine to which said lcani i arms and Wheels ere mounted and with which rmainin pei/vl is'pivotallysecured, a balance for said ratchet Wheel, a sto arm for said wheel, a swinging erm adapted) to be engagedv and released by said stopernnand l scam engaging ond oscilletiriv' solid cam arm.

2. A. device of the class described, v'comprising en armature provided With. a depending pawl releasing extension,` e'iatchet Wheel composed of two toothed sections, `pswls adapted for engagement With said sections. sind adapted to be engaged by seid depending extensiony a cem erm connected with one of said pevvls, e spring enga-gin said cem erm,. an adjustable sto for` siii cam erm, c movable frame to W ich said com arm and Wheels are mounted and, with which the remaining pewl is pivotallysecured, seid pawls hiiving overhs-n ing arms, a cam adapted to he enga e by said arms, a countervveight for sai ratchet Wheel, s stop arm for seidwhcel, a swinging arm adapted to be engaged bysaid stop arm, end s cam* engaging and oscillating said cam arm.

` 3. A device ofthe class described-comprising in combination, en armature, ineens for operating the same, a ratchet Wheel provided with a stop arm and a balance, a paWl y for operating seid ratchet Wheel adapted to be thrown out of operative relation therewith by said armature, and a governor rovi'ded with means adapted to be srreste by said sto erm.

Li.' .A evice of the class described comprising in combination, a tele raph receiving instrumeiit, a ratchet Whee and escapeiiient, A

seid escapenient being operatively associated with the receiving instrument to permit .f the latterto disconnect the .escapein ent from and adaptedto release said interposed device to permit o eration oi seid second means, said. secon( means including devices operatively associated with said interposed device to restore the seine to en arresting position.

In testimony whereof I have hereunto set my hand in presence of two Witnesses.

EUGNE DUCRETET. Witnesses:

YHenson C Coxii7 JOHN BAKER. 

